Camera



sept. z, 1924. I 1,507,447

E. WISNIEWSKI ET AL A CAMERA Fil'ed Nov. 29. `1921 I Suva/nto@ 4 @mi wgw unllllllllllllllh 1f "',ifzrrazzmlr within the cabinet.

Patented Sept. 2, 1924.

1,507,447 UNITED sTATEs PATENT OFFICE.

nommen wrsrrrnwsln, or NEW Yoax, AND ANTON s'rGEn, or LONG mum ern.

NEW YORK.

Application led November 29, 1921. Serial No. ,$18,850.

tively, in the counties of New York and Queens, respectively, and State of New York, have invented certain new and useful Improvements in Cameras, of which the following is 'a specification.

The invention relates to photographic apparatus in which there is employed' a plurality of lenses mounted upon a turret which may be rotated to successively bring the various lenses into the optical axis of the apparatus. It has for its object, in apparatus of this character, to provide means for positively holding a lens in its-active' posltion and for so mounting same in the carrying turret and connecting it with the focusing mechanism provided that the operation of focusing may be accom lished from the rear of the apparatus. A `filrther object, of the invention consists in the provision of holdving means which do not act upon the bearing surface of the turret.

The nature of the invention, however, will best be understood when described in 'connection with the accompanying drawings, in

which- Fi 1 is a front elevation of the photograp ic apparatus.

Fig. 2 is an elevation of the inside of the door carryin the turret and lenses.

Fig. 3 is a orizontal section taken on .the line 3-3,7Fig. 1, looking inthe direction of the arrows. i

Fig. 4 is a fragmentary vertical section taken on the line 4 4, Fig. 3, looking in the direction of thearrows.

Referrin tothe drawings, 10 Ydesignates a suitable ca inet or box and to .the front of which is hingeda door 11,'or the like, which may be iixedly secured to thev cabinet thru locking screws 12 projecting outside of the door andfitting studs 13 provided therefor Mounted 'within this door is a turret member consisting of a rotatable disk 15 to which is attached a plurality of sleeves 16 adapted to receive the rev spectve lenses 17 which are to be brought into the optical axis 18 of the apparatus thru opening being designed to the rotation of the disk 15. The latter is provided with an off-set or flange 19 having a plurality of equidistantly spaced notches 20 corresponding in number to the number of lens holders .or sleeves 16 of the turret disk; and a spring-pressed detent 21, carried by the door, is desi ed to drop therein to hold the rotatable dlsk 15 in the proper position for locking the articular lens in the Optical axis 18. The hollding means for the turret plate then does not contact with its bearing surface and obvates damage to same i thereb A cover 22, upon the inner side ofthe door, closes oii' the entire space occupied by the turret and is provided with a single opening 23 whose axis lies in the optical axis 18, sai

permit of movement therethru of a lens 17 .for the purpose hereinafter set forth. The lenses 17 are mounted in their respective sleeves 16 'in manner'to allow of a limited reciprocation therein, as in providing a slot 24 1n a said sleeve and securing a screw or pin 25 in the corresponding lens barrel, said pin or screw projecting into the said slot. The length and width of this slot are designed to allow the lens to project inwardly beyond the cover plate sufficiently to effect engagement with an extension of the focusing mechanism, the

same being inthe nature of'laterally extending arm .30; and to turn sufficiently to lock therein, as thru a bayonet connection 31. The particular lens then becomes a. fixed portion of the focusing mechanism and may be reciprocated in the optical axis 18 in the usual manner, as in' rotating a handle or wheel 32 located referably at the back of the apparatus. e rotationof this handle rotates a lfocusing stem 33, in threaded enagement with the inner end of arm 30, to t ereby'impart reciprocation to said arm and its attached lens.

In' this manner, though the various lenses are individually separable'- from the focusing mechanism, yet they may conveniently be secured thereto to become an integral part thereof thru the substantial and connection between same. It will be a reciated, also, that in the4 operative position, shown in Fig. 3, there is no possibility of the particular lens being displaced from its position in the optical axis, as not` only is the turret held by the detent but the lens itself il fixed thru its connection with the focusing mechanism. The disengagement of the lens, moreover, isl conveniently effected merely7 by rotating same to disengage the bayonet Joint and then pulling outwardly -until limited by the in 25. Theturret may then be rotated free y to bring another lens into position, if

plate and a pluralityv of lenses mounted therein andcapable of a limited reciproca- 2. In a camera having a rotatable turret plate and a plurality of lenses mounted therein, and separate focusing mechanism: means tosecure a selected one ofsaid lenses to the focusing with. v

3. In la camera having a rotatable turret mhanism to operate thereplate and a plurality of lenses mountedtherein, land separate focusing mechanism: means to secure a selected one of said lenses to the focusing mechanism, after it has been moved into the optical axis of the camera, to allow of focusing by the said mechanism. 4. In a camera having a rotatable turret tion .in ,said plate, and separate focusing imagier? mechanism: means, when a selected one of said lenses has been moved inwardly a pre.-

determined amount, to lock same to the said focusing mechanism to operate therewith.

5. In a camera: Ia rotatable turret plate having a plurality of sleeves,each provided `with a longitudinal slot, and lenses mounted "ein the respective sleeves and each having a pin fitting the corresponding slot of its a sleeve; aback plate for the turret and having' an. opening in the o tical axis of the ecamera to permit a selec one of said lenses to extend therethru into the camera; and foousin mechanism adapted to be secured to said inwardly projecting lens to reciprocate same for proper focusing.

.6. In a camera: a bearing member, a rotatable turret plate having its circumference {ittingwithin the bearing member andhavirg an offset rtion provided with a p1u.Y r ity of equi istantly spaced notches, corresponding in number to the numberv of lenses carried by the turret plate, and a spring pressed detent to engage a notch to hold the turret plate against rotation.

Signed at Long Island City, lN. Y., in the county ofQueens and lState of New York lthis 23d dayof Novembe'r A. D. 1921.

4E-DMUNDVVISN,IEVVSKL ANTON STGER. 

